NEOTeCHA Reactor Sampling Type PV
A safe and reliable sampling device to meet the demands of the chemical
and pharmaceutical industry
Features
General applications
Technical data
To take a sample from reactors or vessels
containing:
• poisoned media’s
• biological media’s
• corrosive media’s
• environmental unfriendly media’s
• liquids with high viscosities
Additionally the PV reactor sampling unit allows
the operator to view the reaction process stage
via an integrated sight glass.
Pressure (bar):
Temperature (°C):
Sample volume (ml):
max. 10
max. 200
150 / 250 / 500 / 1000
• Extracts a representative sample from a
reactor under process conditions without
stopping the process or opening the reactor.
• Safe and simple operation.
• Sample is transferred pressure less.
• Different sample volumes are available.
• All wetted parts are PTFE, PFA, perfluor or
glass.
• Direct mounting of all auxiliary valves via
integrated mini mounting flange.
• If pH metering is required the top flange
of the PV unit can be equipped with the
required connection.
• Unit can be connected to a continuous recirculation pump.
• Unit can be integrated with vacuum,
nitrogen and rinsing supply lines.
• Liquid product can be added to the reactor
via the PV unit.
• Sample media can be returned to the
reactor.
• No contamination of the atmosphere.
Displaced air in the bottle is returned into
sight glass.
• Soft seated check valve prevents entering
media in the vacuum line.
• Unit can be flushed and rinsed in situ.
• All valves can be pneumatically actuated.
• Numerous varieties of auxiliary valves and
accessories.
The unit can be integrated with various sensor
devices to measure Redox, pH or temperature
of the chemical process inside the reactor.
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© 2012 Pentair Inc. All Rights Reserved.
NEOJV-0023-EN-1402
NEOTeCHA Reactor Sampling Type PV
Main components
(1) Upper sight glass flange
(2) Valve seat
(3) Vacuum auxiliary valve
(4) Sight glass safety cylinder
(13) Vent valve NTB DN15 PFA lined
(5) Sight glass
(14) Transfer device
(6) Hollow ball
(15) Drain valve NBT DN15 PFA lined
(7) Lower sight glass flange
(8) NTB/NTC DN20 PFA lined ball valve
(16) Sample bottle
(9) Mounting flange
(10) Suction hose
(11) Dip tube
(12) Reactor tank
Material specification
Part name
Ball valve type NTB/NTC
Sight glass flanges and connecting flange
Sight glass
Ball support and check valve floor
Hollow ball
Ball check seat
Suction hose
Sight glass safety cylinder
Flange seals
Material
PFA lined ductile iron
PFA lined stainless steel
Borosilicate
Virgin PTFE
Virgin PTFE
Perfluor elastomer
PFA 12/9 or 19/16 mm dia.
Acryl glass
Virgin PTFE
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NEOTeCHA Reactor Sampling Type PV
Description of operation
Process Step A: All valves are closed: (3), (8), (13) and (15).
Process Step B: By opening valves (3) and (8), the liquid from the reactor is lifted with vacuum
through the suction hose (10) inside the dip tube through the open ball valve (8) into the sight glass
(5). The PTFE hollow ball (6) floats on the rising liquid level till the ball will interrupt the vacuum
on valve seat (2). This will prevent the liquid entering the vacuum line.
Process Step C: As soon as the sight glass is full, the main shut off valve (8) can be closed,
thereafter also ball valve (3) can be closed to interrupt the applied vacuum. In this stage the media
is separated from the reactor and can now be transferred from the sight glass into a bottle (16).
There are several options available to do that. The most common is by means of the transfer
device (14) including the drain valve (15) and vent valve (13). It connects the middle flange to the
top flange.
Process Step D: In the lower end of the transfer device the bottle (16) can be connected by an
ISO GL45 thread. The drain valve (15) mounted on the middle flange controls the flow of the media
into the bottle.
A vent valve (13) on top of the sight glass will permit the displaced air from the bottle to be
returned into the sight glass. With this type of transfer device no emission of toxic or foul smelling
gases occurs during the transfer of the sample.
Process
step A
The dip tube will be selected according to the type of reactor and operating conditions, i.e.
size of reactor flange, shape and length of dip tube. These parameters are being decided by
the customer. The flange on the end of the dip tube is a 2” ANSI 150 or a DIN DN 50. The PV
is mounted and supported from this flange. The suction hose is mounted into the PFA lined
connecting flange (9).
The main shut-off valve (8) is a standard Neotecha ball valve type NTB. It is also possible to use
the C-ball valve, a dead-spot free version.
Process
step B
The lower sight glass flange (7) has two ports to connect valves or other auxiliary equipment
(transfer device) by means of a 2-hole flange. The upper sight glass flange (1) is provided with four
ports. The inside diameter of these ports is 8 mm.
The cylindrical sight glass (5) is rated at 10 bar and is additionally protected by an acrylic safety
cylinder (4). The valve seat (2) is equipped with a soft seat made from a Perfluor elastomer and
insures a bubble tight shut off with the floating ball.
The transfer unit can be equipped with a bottle sensing device. This sensing device requires that
the bottle is connected properly before the sample can be transferred into the bottle. Accidental
spilling of the media by human error is eliminated.
Since there seldom are enough flange connections (nozzles) on reactors, the PV has been
designed to connect a gas or liquid line to the mounting flange (9) which brings the gas or liquid
into the reactor through the inside of the dip tube.
Process
step C
Process
step D
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NEOTeCHA Reactor Sampling Type PV
Auxiliary valves
Accessories options
PV reactor sampling unit
Mounting
flange
Stainless Steel
ball valves
Spacer
2-way
Stainless Steel
ball valve
Top flange suitable for
In-Trac pH metering
Stainless Steel
braided hose
Angle
connectors
Stainless Steel
diaphragm valve
Top flange c/w pH probe
Tracing
options
PFA lined ball
valve
PVDF
diaphragm
valve
PFA plug valve
PFA plug valve
Suction devices
Manual
vacuum
pump
Ball valves (TE 11)
Reactor sampling unit PV
PVDF diaphragm
valve
Stainless Steel/PFA
diaphragm angle valve
Diaphragm vacuum pump
Stainless Steel
diaphragm valve
Eductor kit
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NEOTeCHA Reactor Sampling Type PV
Transfer device options
PVDF diaphragm
valves (TE 1)
PVDF pneumatic
operated diaphragm
valves (TE 2)
Indirect sample return units
PFA lined ball
valve
Glass plug valves
(TE 15)
Stainless Steel/PFA
diaphragm valves (TE 3)
Stainless Steel ball
valves (TE 7)
Direct sample return unit
Connected direct to
transfer device
Stainless Steel
diaphragm valve
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NEOTeCHA Reactor Sampling Type PV
Modular conception
The modular concept of the PV reactor can be tailored to virtually every customer sampling
requirement.
The volume of the sight glass is smaller or equal to the size of the sampling bottle to eliminate
spilling by human error. 150, 250, 500 and 1000 ml samples volumes are available.
We offer various solutions for heat tracing on auxiliary valves as well as to the main PV unit.
The transfer device and auxiliary valves used for the vacuum or for rinsing media are available
either manually or pneumatically operated. The unit can be utilized to a fully automated and
remote controlled unit.
Instead of using the transfer device a direct sampling method can be offered by means of the
Neotecha Sapro® sampling valve. The Sapro® sampling valve will be mounted between the main
shut off valve and the lower sight glass flange.
The operation is achieved by a spring loaded lever which closes automatically when it is released.
The handle can be locked by a pad-lock. The stroke of the lever is adjustable to regulate the flow
to the bottle.
The displaced air from the empty bottle can be released via a transfer hose back into the sight
glass.
150 ml sight
glass with
heat tracing
150 ml
250 ml
When the number one priority is to have total containment of the sampling media, Neotecha
can provide a closed sampling system via a syringe. A sample can be taken without exposure to
personnel or the environment. With the ever increasing concerns regarding fugitive emissions, the
Sapro® sampling system with the syringe is an ideal solution when hazardous samples have to be
taken.
Once the sample is taken, the syringe can then be transported to the lab and can be converted to a
needle syringe for easy sample transferring.
After connecting the syringe, the lever can be operated to open both the sample container and the
Sapro® sampling valve. Available in a variety of materials to handle highly corrosive media.
Safety plug
Syringe
500 ml
Adaptor cap
Needle adaptor
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NEOTeCHA Reactor Sampling Type PV
Rinsing and cleaning
Two ports only is what it takes to completely rinse and clean the reactor sampler without
dismounting any component.
Connection port A allows rinsing: sight glass, transfer device, main valve and suction hose
(yellow area).
Connection port B allows rinsing: the area between the suction hose and dip tube (green area).
Connection A
Continuous flow circulation
If a continuous or almost continuous metering is necessary like for instance temperature, pH
or Redox metering, it is possible to equip the PV unit with a diaphragm pump, which produces a
continuous flow through the suction hose and back through the mounting flange port. In this case
the hollow ball is removed from the PV reactor in order to allow a continuous flow circulation.
Operation principle with a continuous circulation pump
Open the main valve (1) and the pump discharge valve (2). Open the air supply line valve to start
the pump motion. The vacuum pump (3) raises the liquid through the suction hose mounted inside
the dip tube, the main shut-off valve (1), sight glass (4) and enters the pump through the suction
hose (5). The liquid will be returned via the discharge hose (6) and discharge valve (2), back into
the dip tube inside the reactor.
The modular concept allows a second PFA hose to be installed in the dip tube to allow a smooth
discharge of the returned liquid in the reactor, without splashing.
Connection B
During the circulation, a measure probe can be inserted through the top sight glass flange.
The many connecting ports of the reactor sampler allow an easy installation of a recirculation
pump, transfer device and various auxiliary valves, all in one integrated, compact unit.
(3) Vacuum
pump
(4) Sight glass
(5) Suction
hose
(6) Discharge
hose
(1) Main valve
(2) Pump discharge
valve
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NEOTeCHA Reactor Sampling Type PV
Other lined products available from Neotecha
Lined In-Line sampling valves
• Dead space free design, to ensure representative sampling
• Guaranteed safe and simple operation
• As standard fail safe to close operation
• Modular design
• Suitable for open and closed ‘in line’ sampling
Lined ball valves
• Virgin PFA or PFA conductive lining offers high corrosion\resistance
• Full bore design
• One piece trunnion mounted: no possibility of damaging PFA lining on ball by the stem
• Special C-ball design available to eliminate dead space and excellent control characteristics
Lined butterfly valves
• PFA / PTFE lining offers high corrosion resistance
• Mechanically activated primary and secondary shaft seal
• PFA, PTFE, conductive, exotic materials as well as UHMWPE trims are available
• One piece disc stem design to ensure high Kv values.
Lined check valves and sight glasses
• PFA lining
• Borosilicate glass
• PTFE ball, guided with 4 ribs for vertical and horizontal applications
• With integrated drop lip
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